The simple objective is to click to remove multiple stones of the same colors adjacent to one another. As stones are removed, they fall to create new patterns. The logical challenge and variations keep the game interesting. You can vary the size of the field of play and the number of different colors and use special animations, sounds, and a count-down mode. You can also enable special stones that include bombs and missiles. When all the remaining stones are different colors, the game is over.
You can choose an image file or folder for background pictures and you can keep global records of high scores. The game is easy to play -- but not so easy to win -- and includes a boss key. The author asks that you send him a postcard to register.